Altera PCI Compiler User Manual

Page 155

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Altera Corporation

User Guide Version 11.1

3–81

October 2011

Functional Description

Figure 3–25

shows an example of a disconnect during a burst target write

transaction where multiple data phases are completed.

Figure 3–25

applies to all PCI MegaCore functions, excluding the 64-bit extension
signals as noted for pci_mt32 and pci_t32. One additional data phase
will be completed on the local side following the assertion of lt_discn.

Figure 3–25. Disconnect in a Burst Write Transaction

Note to

Figure 3–25

:

(1)

This signal is not applicable to either the pci_mt32 or pci_t32 MegaCore functions.

ad[31..0]

(1) ad[63..32]

cben[3..0]

(1) cben[7..4]

par

(1) par64

framen

(1) req64n

irdyn

devseln

(1) ack64n

trdyn

stopn

lt_framen

l_adro[31..0]

l_cmdo[3..0]

l_dato[31..0]

(1) l_ldat_ackn

(1) l_hdat_ackn

clk

(1) l_dato[63..32]

l_beno[3..0]

(1) l_beno[7..4]

Adr

7

Adr-PAR

Adr

7

BE0_L

BE0_H

D0_L

D0_H

D0_L

D0-L-PAR

D0-H-PAR

BE0_L

D1_L

D1_H

D2_L

D2_H

D1_L

D1_H

D2_L

D2_H

D3_L

D3_H

D1-L-PAR

D1-H-PAR

D2-L-PAR

D2-H-PAR

D3-L-PAR

D3-H-PAR

D0_H

2

3

4

5

6

7

9

10

12

8

11

1

13

14

BE1_L

BE1_H

BE2_L

BE2_H

BE3_L

BE3_H

BE1_L

BE1_H

BE2_L

BE2_H

BE0_H

lt_rdyn

lt_ackn

lt_dxfrn

lt_tsr[11..0]

000

381

781

000

381

lt_discn

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